Designer Spin Pseudomolecule Implemented with Trapped Ions in a Magnetic Gradient
Designer Spin Pseudomolecule Implemented with Trapped Ions in a Magnetic Gradient
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DOI：
10.1103/physrevlett.108.220502
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发表时间：
2012-06-01
影响因子：
8.6
通讯作者：
Wunderlich, Ch.
中科院分区：
文献类型：
--
作者：
Khromova, A.;Piltz, Ch.;Wunderlich, Ch.
我们报告的实验研究的一个单独的伪分子使用可调磁诱导J型耦合自旋态之间的捕获离子。各个自旋的共振被很好地分离，并以高保真度进行处理。量子门是在热激发伪分子振动的情况下使用微波辐射进行的。演示非最近邻之间的受控非门作为采用自旋链的量子总线的原理证明。结合核磁共振实验和捕获离子的有利特征，分别为可扩展的量子信息处理开辟了一条新的途径。
We report on the experimental investigation of an individual pseudomolecule using trapped ions with adjustable magnetically induced J-type coupling between spin states. Resonances of individual spins are well separated and are addressed with high fidelity. Quantum gates are carried out using microwave radiation in the presence of thermal excitation of the pseudomolecule's vibrations. Demonstrating controlled-NOT gates between non-nearest neighbors serves as a proof-of-principle of a quantum bus employing a spin chain. Combining advantageous features of nuclear magnetic resonance experiments and trapped ions, respectively, opens up a new avenue toward scalable quantum information processing.